Defensive wall

Defensive walls were used to enclose settlements from prehistory into the modern period. Generally, these are referred to as city walls or town walls, although there were also walls, such as the Great Wall of China and the Atlantic Wall, which extended far beyond the borders of a city and were used to enclose vast regions.

Philippines

• Intramuros - partially preserved, partially restored after WWII. Original walls are still on are well preserved.
• Fort San Pedro - in Cebu
• Fort San Antonio Abad - in Manila
• Fort Pillar- a Spanish defence fort in the island of Mindanao